teach_flow = 
	[
	 {
		 tip:"检查仪器，并正确连接导线",
		 tag:[
		      TAG_GUIDELINE,
		      TAG_LINE6
		      ],X:0.4,Y:0.1
	 },
	 {
		 tip:"闭合开关",
		 tag:[
		      TAG_SWITCHCRAFT,
		      TAG_SWITCHCRAFT_BODY,
		      TAG_SWITCHCRAFT_PART
		      ],action:ACTION_DO1
	 },
	 {
		 tip:"调整滑动变阻器滑片至电流显示1.0 A,等待3分钟",
		 tag:[
		      TAG_RHOSTAT,
		      TAG_RHOSTAT_BODY,
		      TAG_SLIDING
		      ],action:ACTION_DO1
	 },
	 {
		 tip:"打开开关,静置,直到煤油液面降至刻度线",
		 tag:[
		      TAG_SWITCHCRAFT,
		      TAG_SWITCHCRAFT_BODY,
		      TAG_SWITCHCRAFT_PART
		      ],action:ACTION_DO2
	 },
	 {
		 tip:"闭合开关",
		 tag:[
		      TAG_SWITCHCRAFT,
		      TAG_SWITCHCRAFT_BODY,
		      TAG_SWITCHCRAFT_PART
		      ],action:ACTION_DO3
	 },
	 {
		 tip:"调整滑动变阻器滑片至电流显示2.0 A，等待3分钟",
		 tag:[
		      TAG_RHOSTAT,
		      TAG_RHOSTAT_BODY,
		      TAG_SLIDING
		      ],action:ACTION_DO2
	 },
	 {
		 tip:"打开开关,结束实验",
		 tag:[
		      TAG_SWITCHCRAFT,
		      TAG_SWITCHCRAFT_BODY,
		      TAG_SWITCHCRAFT_PART
		      ],action:ACTION_DO4
	 },
	 {
		 tip:"恭喜过关",
		 over:true
	 }
	 ]